2861401732691 has 8 divisors (see below), whose sum is σ = 2879038619904. Its totient is φ = 2843765849160.

The previous prime is 2861401732681. The next prime is 2861401732729. The reversal of 2861401732691 is 1962371041682.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2861401732691 - 2¹⁰ = 2861401731667 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2861401732681) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5937146 + ... + 6400976.

It is an arithmetic number, because the mean of its divisors is an integer number (359879827488).

Almost surely, 2^{2861401732691} is an apocalyptic number.

2861401732691 is a deficient number, since it is larger than the sum of its proper divisors (17636887213).

2861401732691 is a wasteful number, since it uses less digits than its factorization.

2861401732691 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 501841.

The product of its (nonzero) digits is 870912, while the sum is 50.

The spelling of 2861401732691 in words is "two trillion, eight hundred sixty-one billion, four hundred one million, seven hundred thirty-two thousand, six hundred ninety-one".